We can finally start guessing and collecting features from leaks as far as the upcoming GDR3 Windows Phone 8 update is concerned. Microsoft has published the details of the upcoming refresh, and they refer to both software and hardware. It’s the yearly-cycle that Microsoft stays true to, but, this time, instead of something major, like Windows Phone 8 itself was, we’re getting improvements.

According to Microsoft, the update “will roll out to existing phones over the next several months”. However, “in the coming weeks” is also a wording which is being used.

As you can see in the screenshot above, the leaks were true. The Start Screen will get a new layout thanks to more Live Tiles (six small, three medium, or one large and one medium/three small). This will be, in part, possible with new support added for 1080p screens, and five-, as well as six-inch form factors. Also, while talking about specs, Microsoft is adding support for Qualcomm’s new Snapdragon 800 SoC.

A Driving Mode is being added to help reduce distractions while behind the wheel. This mode will “limit notifications on the lock screen—including texts, calls, and quick status alerts—until you’re safely parked”.

However, there are a lot of other options, like the very useful multitasking screen which will allow you to close applications you no longer use, by tapping the X button. Then there’s a new rotation lock option, new ringtones –and custom sounds for events — , improved bluetooth, ability to attach Office files (and PDFs) to e-mails, as well as the ability to use WiFi out of the box, instead of chewing on your data.

Of course, these specific improvements are being called out by the press release and blog post. According to Microsoft, there will be a lot more (hundreds). For more details, hit up the source link below.